Skip to main content
Log in

Coagulation and ozonation treatment of biologically treated wastewater from recycled paper pulping industry: effect on the change of organic compounds

  • Research Article
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

Recycled paper pulping wastewater (RPPW) will cause serious environmental problems due to the high loads of dissolved organic matter (DOM) and toxic components. In the present work, the degradation of DOM in the biologically treated RPPWs (cardboard wastewater (CW) and corrugated container wastewater (CCW)) by a combined coagulation and ozonation process was investigated. The optimal chemical oxygen demand (COD) removal of CW reached 73.64% at aluminum sulfate (Al2(SO4)3) dosage of 800 mg/l, aeration aperture of 10 μm, pH of 9, hydrogen peroxide (H2O2) dosage of 100 mg/l, and reaction time of 70 min. The optimal COD removal of CCW reached 55.76% at a poly-aluminum chloride (PAC) dosage of 700 mg/l, H2O2 dosage of 140 mg/l, and reaction time of 50 min. This study provided some insights into the change of DOM during the combined treatment through the use of UV–Vis spectroscopy and excitation-emission matrix spectroscopy (EEM). PAC and Al2(SO4)3 removed high molecular weight organic such as lignin and lignin-derived compounds to improve the biodegradability of the wastewater. Ozone oxidized high molecular weight organic with complex functional groups to low molecular weight organic with simple functional groups and even mineralization, and this phenomenon resulted in the COD of ozonation effluent significantly reduced. Thus, the results presented in this study support the application of the combined coagulation and ozonation process in treating RPPW.

Graphical abstract

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10

Similar content being viewed by others

Data availability

The datasets used and/or analyzed during the current discussion are available and from the corresponding author upon reasonable request.

References

Download references

Acknowledgements

This study was supported by the Key R&D and Promotion Project of Henan Province (No. 222102320388, 212102310509, 222102320094) and the Postdoctoral Research Grant in Henan Province (No. 20190212).

Funding

This study was supported by the Key R&D and Promotion Project of Henan Province (No. 222102320388, 212102310509, 222102320094) and the Postdoctoral Research Grant in Henan Province (No. 20190212).

Author information

Authors and Affiliations

Authors

Contributions

Songyu Wei (first author): date analysis and writing—original draft.

Hongbin Xu (corresponding author): funding acquisition and writing—review and editing.

Guoqiang Li: funding acquisition and writing—review and editing.

Yuhuan Zhang: material preparation and data collection.

Miaoqing Yang: supervision.

All authors commented on previous versions of the manuscript. The authors read and approved the final manuscript.

Corresponding author

Correspondence to Hongbin Xu.

Ethics declarations

Ethical approval

The authors follow the ethical responsibilities of authors in “Environmental Science and Pollution Research.”

Consent to participate

All the authors listed have approved to participate in the manuscript that is enclosed.

Consent to publish

The manuscript is approved by all authors for publication.

Competing interests

The authors declare no competing interests.

Additional information

Responsible Editor: Guilherme Luiz Dotto

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wei, ., Xu, H., Li, G. et al. Coagulation and ozonation treatment of biologically treated wastewater from recycled paper pulping industry: effect on the change of organic compounds. Environ Sci Pollut Res 30, 92482–92494 (2023). https://doi.org/10.1007/s11356-023-28803-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11356-023-28803-3

Keywords

Navigation